BFP-4127: sync auth openapi yaml

.apigen-state

@@ -1,10 +1,10 @@
 {
   "version": "1",
   "algorithm": "sha256",
-  "generated_at": "2026-03-13T17:12:11.050134Z",
+  "generated_at": "2026-03-13T17:37:42.095691Z",
   "spec_files": {
     "resources/account-data-api.yaml": "2d366acf63b1412c3b49583b22aea07829f297332ebd1b0680954d0d248f2998",
-    "resources/auth-api.yaml": "d26ab4c10c7c716fd7888513a5a51123f5040067d56fd7e96b55431ed2f3184c",
+    "resources/auth-api.yaml": "f5f169f40f857b157b59adf3a17bd39aa5fc1c32295dd95df41189b1e0d95117",
     "resources/bluefin-api.yaml": "b81cebbb70822b4806a9c56e819d6dd1b52453f4b37d63a95a14dae7cf0edb9c",
     "resources/common.yaml": "71dc565fccebcc9e71b49b48448d2583903aec7e2d16ef1d69972b50f2e4250f",
     "resources/exchange-api.yaml": "a309b3a5c29fb71dcc26d6f8018883ec51b42db43c29fee7b7ed4f0997146f77",
@@ -13,5 +13,5 @@
     "resources/vera-api.yaml": "f4c51b5f6614dd4e3b9f5f1f01f945e06d9090849530ecb916ad4ae18d8f61a0",
     "resources/websocket-api.yaml": "c2c51ceea701bff0b7e911e9afdb0addeb4d7f173b2a25b996d13f5462cb535b"
   },
-  "combined_hash": "c9a9df6db69d3ab7c6a3c97c28336f560af1f5be224d70ff549da75c1be5e45a"
+  "combined_hash": "f649e62cc543bfa1af416cd99b2108cc3dec809ee2a72c81fc730754fc6d6409"
 }

resources/auth-api.yaml

@@ -24,8 +24,6 @@ components:
           schema:
             $ref: './common.yaml#/components/schemas/Error'
   schemas:
-    ClientType:
-      $ref: './common.yaml#/components/schemas/ClientType'
     JwksResponse:
       type: object
       additionalProperties: true
@@ -393,7 +391,7 @@ paths:
           in: query
           required: false
           schema:
-            $ref: '#/components/schemas/ClientType'
+            $ref: './common.yaml#/components/schemas/ClientType'
           description: "The client application originating the request (WEB or VERA). Defaults to WEB if not supplied."
       requestBody:
         required: true
@@ -465,7 +463,7 @@ paths:
           in: query
           required: false
           schema:
-            $ref: '#/components/schemas/ClientType'
+            $ref: './common.yaml#/components/schemas/ClientType'
           description: "The client application originating the request (WEB or VERA). Defaults to WEB if not supplied."
       requestBody:
         required: true
@@ -558,6 +556,9 @@ paths:
           application/json:
             schema:
               $ref: '#/components/schemas/ClientCredentialsRequest'
+          application/x-www-form-urlencoded:
+            schema:
+              $ref: '#/components/schemas/ClientCredentialsRequest'
       responses:
         '200':
           description: OK